Alert archive / Michigan / River Flood Warnings in 2020

River Flood Warning 19, NWS Detroit, MI

May 18, 2020Saginaw County, Shiawassee County, Michigan

NWS Detroit, MI issued this river flood warning at May 18, 2020, 3:26 PM EDT for Saginaw County, Shiawassee County, Michigan. It took effect at May 18, 2020, 3:45 PM EDT. It was in force for 48 hr.

The area

The counties it named.

The facts

Issued: May 18, 2020, 3:26 PM EDT (19:26 UTC)
In effect from: May 18, 2020, 3:45 PM EDT
Expired: May 20, 2020, 3:52 PM EDT
In force: 48 hr
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Flood severity: Minor

Counties Saginaw County, MI, Shiawassee County, MI

The radar

The Detroit radar (KDTX), 71 km from the middle of the area, began a volume at 19:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Shiawassee River at Owosso (OWOM4). The gauge peaked at 8.60 ft at May 19, 2020, 5:00 AM EDT.

Action stage: 6 ft
Minor stage: 7 ft
Moderate stage: 9 ft
Major stage: 10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04144500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Detroit, MI wrote its last area forecast discussion before this river flood warning went out at May 18, 2:05 PM EDT, 1 hour 21 minutes earlier.

Area forecast discussion, May 18, 2:05 PM EDT, 1 hour 21 minutes before

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Hazardous weather outlook, May 17, 3:41 PM EDT, 23 hours 45 minutes before

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In the hours before

Local storm report, May 18, 10:59 AM EDT, 4 hours 27 minutes before

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Local storm report, May 18, 1:50 PM EDT, 1 hour 36 minutes before

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<head>
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  <title>Service Notice</title>
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</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Detroit, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 18, 7:06 AM EDT	Special Weather Statement	DTX	Bay, Huron, Midland	114 min
May 18, 10:38 AM EDT	Areal Flood Warning	DTX	Bay, Midland, Saginaw	24 hr
May 18, 1:14 PM EDT	River Flood Warning	DTX	Midland, Saginaw	4 days
May 18, 1:14 PM EDT	River Flood Warning	DTX	Bay, Saginaw	9 days
May 18, 5:04 PM EDT	Special Weather Statement	DTX	Bay, Lapeer, Tuscola	56 min
May 18, 5:20 PM EDT	Special Weather Statement	DTX	Lenawee, Livingston, Monroe, Washtenaw, Wayne	55 min
May 18, 6:45 PM EDT	Special Weather Statement	DTX	Lenawee	60 min

Nearby

River Flood Warnings in Michigan, 2020 Every river flood warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.